COKE DRY-QUENCHING DEVICE AND COKE DRY-QUENCHING METHOD

摘要

A coke dry-quenching device 1 includes a cooling chamber 2, a boiler 3, a first gas line L1 that guides a cooling gas from the cooling chamber 2 to the boiler 3, a second gas line L2 that guides the cooling gas from the boiler 3 to the cooling chamber 2, a bypass line L3 that guides part of the gas passing through the second gas line L2 to the first gas line L1, a diffusion line L4 that guides part of the gas passing through the second gas line L2 to the outside, and an inlet flow rate controller that subtracts the gas flow rates in the bypass line L3 and the diffusion line L4 from the gas flow rates in upstream sections 5b and 5c of the second gas line L2 to calculate a chamber inlet flow rate and adjusts the gas flow rates in the upstream sections 5b and Sc of the second gas line L2 or the gas flow rate in the diffusion line L4 in such a way that the ratio between the amount of coke discharged from the cooling chamber 2 and the chamber inlet flow rate approaches a target ratio.